Let’s face it: No matter how you cut it, exercise is good for you. There are so many benefits—from heart health to increased energy to better moods—that come with regular activity. But if you want to engage in a form of exercise that really activates your autophagy (your body’s self-cleaning mechanism), then you should integrate high-intensity workout sessions into your week. You can do it with any form of activity you like—running, swimming, walking. After you warm up, just alternate periods (say, one minute each) where you’re really going hard followed by the same amount of time at a low intensity (or take a little longer in this recovery period if you like). Then repeat that cycle—high, low, high, low. Then you can cool down for a few minutes at the end. Aim for 20 to 30 minutes total.